Chelsea captain John Terry is understood to have been ruled out for up to two months after aggravating his knee injury.

Terry: Knee setback

Terry is due to undergo a small procedure on the right knee that has been troubling him ever since he collided with a post in last month's FA Cup clash with Portsmouth.

Blues boss Andre Villas-Boas had been hoping the 31-year-old would recover in time for Tuesday's Champions League clash at Napoli.

But, despite taking part in training on Monday night, the England centre-back woke up in considerable pain at Chelsea's team hotel on Tuesday morning and will now miss the game and next week's international friendly against Holland.